Compound to revivify wood



Patented Nov. 22, 1938 COMPOUND T REVIVIFY WOOD Charles H. Ostrander, Bloomfield, N. J.

No Drawing. Application August 15, 1936, Serial No. 96,310

8 Claims.

This invention relates to compounds for revivifying wood and process of making same, and has for an object to provide a composition of matter or compound which when applied to dry wood penetrates the wood and restores the wood to its original state permanently since it does not evaporate or dry out and consequently the treated wood will not shrink or dry out even when subjected to heat or changing atmospheric conditions.

The invention is particularly applicable to tighten permanently mortise and tenon joints, dovetail joints, dowel pins, rungs of ladders or chairs, furniture joints such as the legs of chairs '15 or tables, wood supporting screws or bolts, wood frames of automobile bodies, or wood handles inserted in metal heads such as hammers, axes, hoes, plows, spades, lawn mowers, golf clubs and the like. In carrying out the invention, the ingredients, proportions of each, method of combining them and function of each ingredient, are as follows.

One part thin mucilage such as acacia gum, or an adhesive, and water. The purpose of this ingredient is to make the surfaces that touch each other slightly sticky or tacky.

Two parts glycerin. This ingredient swells the wood to its normal natural shape and size.

One part ethylene glycol. This ingredient also swells the wood. It also penetrates and carries the glycerin and gum with it. It does not evaporate, even when subjected to heat, and consequently prevents the wood from ever drying out or shrinking.

The mucilage and glycerin are boiled together in a double boiler. This removes most of the water which is primarily used to dissolve the gum and mix it with the glycerin. When this mixture has cooled the ethylene glycol is added.

When this composition of matter is applied in lieu of glue at time of manufacture, the compound will permanently protect joints such as those described above from loosening-or squeaking. When used on old furniture, tools and so 45 forth, it restores the wood and tightens joints which have worked loose.

The compound is a wood revivifier and not a glue or wood filler. It is preferably to be used wherever a joint depends not upon adhesion of 50 one surface to another, but upon a tight fit of wood inserted in wood or metal, or metal inserted in wood, and the use of the compound will insure permanent tightening of the joint.

Although specific ingredients have been men- 55 tioned by way of example it will be pointed out that the novel product may be obtained by substituting propylene glycol or trimethylene glycol for ethylene glycol. Also any of the sticky gums may be substituted for the acacia. Also the proportions of the ingredients may be varied in the product, it being merely essential that a glycol, and a sticky gum be combined with glycerin to 5 produce the product.

What is claimed is:

1. A method of manufacturing a composition of matter to revivify wood consisting of forming an aqueous solution of one part of mucilage and 10 two parts of glycerine, boiling the product in a double boiler to remove the water, cooling the mixture out of contact with the atmosphere, and adding thereto one part of glycol before the cooled mixture can take up any water. 15

2. A method of manufacturing a composition of matter to revivify wood consisting of forming an aqueous solution of one part of mucilage and two parts of glycerine, boiling the product in a double boiler to remove the water, cooling the 20 mixture out of contact with the atmosphere, and adding thereto one part of ethylene glycol before the cooled mixture can take up any water.

3. A method of manufacturing a composition of matter to revivify wood consisting of forming an aqueous solution of one part of mucilage and two parts of glycerine, boiling the product in a double boiler to remove the water, cooling the mixture out of contact with the atmosphere, and adding thereto one part of propylene glycol before the cooled mixture can take up any water.

4. A method of manufacturing a composition of matter to revivify wood consisting of forming an aqueous solution of one part of mucilage and two parts of glycerine, boiling the product in a double boiler to remove the water, cooling the mixture out of contact with the atmosphere, and adding thereto one part of trimethylene glycol before the cooled mixture can take up any water.

5. A composition of matter to revivify wood, consisting of a dehydrated mixture of mucilage one part, glycerine two parts, and glycol one part.

6. A composition of matter to-revivify wood, consisting of a dehydrated mixture of mucilage one part, glycerine two parts, and ethylene glycol one part.

7. A composition of matter to revivify wood, consisting of a dehydrated mixture of a sticky gum, glycerine, and propylene glycol, the proportions being sticky gum one part, glycerine two parts, and propylene glycol one part.

8. A composition of matter to revivify wood, consisting of a dehydrated mixture of sticky gum, glycerine and trimethylene glycol, the proportions being sticky gum one part, glycerine two parts, and trimethylene glycol one part.

CHARLES H. OS'I'RANDER. 

